单项选择题

（）是指发行机构按照认购者自报的价格和利率，或从高价开始，或从低利率开始，依次决定中标者。

A、价格投标
B、利率投标
C、竞争性出价
D、非竞争性出价

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1. Which of the following statements BEST describes expository writing? a. Expository writing is a form of writing that exposes readers to different types of literary genres. b. Expository writing seeks to explain or inform readers about a subject with details, reasons, and evidence. c. Expository writing is a form of writing that exposes readers to the life of an author. d. Expository writing is mainly used in plays to expose actors to the play and the vision of the director. e. Expository writing is a form of writing that show the author’s assertion about some phenomenon is more truthful than others’. 2. When using expository writing, it is important to assume that your audience has: a. Some background knowledge about the topic b. Personal experience with the topic c. Little to no background knowledge about the topic d. An understanding of the meaning of the word expository e. Their own judgment or expert opinion on the topic 3. Which of the following is NOT an example of an expository essay? a. An essay describing your new computer. b. An essay that informs readers on how to make a cake. c. An essay contrasting a day trip to the city with a day trip to the beach d. An essay explaining how the stock market came into being in 1990s in China. e. An essay arguing why I think “The Wandering Earth” is a better science fiction movie than “Star Wars”. 4. Which of the following statements is UNTRUE of expository essays? a. You will not need to write a thesis statement b. You should end your essay with a conclusion paragraph c. The length of the essay can vary d. You should back up your facts with things like stats and charts e. An expository essay is not about convincing your reader to take a side 5. An essay that goes into great detail about your summer vacation in Hainan would be an example of what type of expository essay? a. How to/Process b. Descriptive c. Cause and Effect d. Comparison and Contrast e. This world not be an example of expository essay

答案： B

单项选择题

10个月男婴，反复呼吸道感染4个月，两次肺炎住院治疗。一周前发热，咳嗽，神萎，纳减。体检：稍气促，双肺中细湿啰音，心无异常，未见扁桃体，浅表淋巴结未扪及。胸片双侧支气管肺炎，未见胸腺影；WBC15×10⁹/L，中性粒细胞0.79，淋巴细胞0.21；NBT阳性细胞89%；血清IgG<200mg/L，IgM<100mg/L，IgA50mg/L。该病例家族史的特点是（） A. 其父系中男性可能有类似发病者 B. 其父系中女性可能有类似发病者 C. 其母系中男性可能有类似发病者 D. 其母系中女性可能有类似发病者 E. 其家族中可能有类似发病者，无性别差异

A.79，淋巴细胞0.21；NBT阳性细胞89%；血清IgG<200mg/L，IgM<100mg/L，IgA50mg/L。该病例家族史的特点是（）